MSM9810 View Datasheet(PDF) - Oki Electric Industry

Part Name

Description

Manufacturer

MSM9810

8-channel Mixing OKI ADPCM Type Voice Synthesis LSI

Oki Electric Industry 

¡ Semiconductor

MSM9810

As Figure 9-4 shows, CS and WR pulses are input 7 times when CMD is in “H” status, to input

data to the TMP1 to TMP7 registers. The LSI increments the registers at the rise of the WR pulse

when CMD is “H”. CMD must not be “L” while inputting data. When CMD becomes “L” while

inputting data, the increment of registers is cleared.

Table 9-8 shows the configuration of data to be input to TMP1 to TMP7 registers.

Table 9-8 TMP Register Data Configuration

D7 D6 D5 D4 D3 D2 D1 D0

TMP1 register A23 A22 A21 A20 A19 A18 A17 A16

TMP2 register A15 A14 A13 A12 A11 A10 A9 A8

TMP3 register A7 A6 A5 A4 A3 A2 A1 A0

TMP4 register T23 T22 T21 T20 T19 T18 T17 T16

TMP5 register T15 T14 T13 T12 T11 T10 T9 T8

TMP6 register T7 T6 T5 T4 T3 T2 T1 T0

TMP7 register S3 S2 S1 S0 P1 P0 0 0

Input the start address of voice data to TMP1 to TMP3 registers. Input the stop address of voice

data to TMP4 to TMP6 registers.

Input the playback system and sampling frequency to the TMP7 register. Table 9-9 shows the

input data configuration of the playback system and sampling frequency.

Table 9-9 Data Configuration of Playback System and Sampling Frequency

S3 S2 S1 S0

0 0 0 0 Sampling frequency 4.0kHz

0 0 0 1 Sampling frequency 8.0kHz

0 0 1 0 Sampling frequency 16.0kHz

0 0 1 1 Sampling frequency 32.0kHz

0 1 0 1 Sampling frequency 6.4kHz

0 1 1 0 Sampling frequency 12.8kHz

0 1 1 1 Sampling frequency 25.6kHz

1 0 0 1 Sampling frequency 5.3kHz

1 0 1 0 Sampling frequency 10.6kHz

1 0 1 1 Sampling frequency 21.3kHz

P1 P0

0 0 Playback system: 4-bit ADPCM

0 1 Playback system: 4-bit ADPCM2

1 0 Playback system: 8-bit non-linearPCM

1 1 Playback system: 8-bit straight PCM

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